894 sph.i:rtacei. 



fl ITerhicolce, 



2S94. Sphaerla tomicum. Lev, " Brown-spored Grass 



Sphaeria." 



Peritliecia scattered, innate, flattened at the base, black, seated 

 beneatb the shining blackened cuticle ; ostiola erumpent, papil- 

 late ; asci cylindrical ; sporidia uniseriate, oval, dark brown, with 

 a nucleus in the centre. — Leu. Ann. Sc. Nat. (1848), ix. p. 144. 

 B. ^ Br. Ann. N.H. no. 633. Curr. Linn. Trans, xxii. t. 58,/. 87. 



On. Aira ccespitosaSkXid Juncus. Jan. Batheaston. 



Sporidia (•00a4--00r)6) -Ol-'OIS m.m. long. 



2635. Sphaeria lirella. Fr. " Meadow-sweet ^'phseria." 



Peritliecia free, distinct, seriate, when collapsed umbilicate be- 

 neath, nestling under a blackish, lanceolate, even, slightly swollen 

 spot of the epidermis. — Moug.exs. no. 668. Fr. El. ii. p. 105. 

 Cooke exs. no. 273. Eng. Fl. v. p. 273. Be7'k. exs. no. 37. Fckl. exs. 

 no. 905. Diaporthe lirella, Fckl. Sym. Myc. p. 206. 



On dry stems of Spircea uhnaria. 



Having scarcely the appearance of a Sphseria when viewed externally, but 

 when the epidermis is removed the free distinct perithecia, hollowed out at 

 the base, immediately become visible.— J/./. ^. 



:2686. Sphaeria acus. Blox. " Dock stem Sphaeria." 



Perithecia small, subglobose, flattened, concealed by the epi- 

 dermis, piercing it with the sharp pointed ostiola ; sporidia bise- 

 riate, or crowded, colourless, narrowly cylindrical, with rounded 

 ends or acuminate and almond-shaped. — Curr. Linn. Trans, xxii. 

 p.S2b,t. 58,/. 93. 

 On dock. 

 Sporidia (•0003-*0004 in.) 'OOrS-'Ol m.m. long j endochrome 2-4 partite. 



2687. Sphaeria maculans. Sorv. " Spot Sphaeria." * 



Spots orbicular, few, grey; perithecia scattered, subglobose ; 

 ostiola punctiform ; sporidia oblong, elongated, curved, 6-7 sep- 

 tate.— i?. 4' Br. Ann. N.H. 7zo.641*. Soiv. t. 394,/ 9 (not Desni, 

 exs. no. 1784/ 



On Scirpus lacustris. 



Considered in Eng. Fl. as a variety of S. scirpicola, but separated on ac- 

 count of its external appearance, and by the sporidia being very much longer 

 and with more than twice the number of septa. 



